Something about the trees

Alder at sunset, originally uploaded by jiihaa.

Sunset blue, originally uploaded by jiihaa.

Two birches, originally uploaded by jiihaa.

I tried to resist the temptation of posting yet more tree photos, but gave in. What can I say? Trees are irresistible for me as a subject, there is something in them which gets to me, at the same time simple but complex. And they do produce air that we breathe.